Usage:

Coopers Carbonation Drops are designed to
make bottling a breeze for all levels of homebrewers. Simply
add one Coopers Carbonation Drop to each 12 oz bottle (2
drops if using 22 oz bottles) prior to filling. Fill bottle
to within 1-2 inches of the top and cap as normal. Store
at fermentation temperature and your beer will be fully
carbonated within 3 days. No more measuring, racking or
uneven carbonation levels.